lol.. that was me. I am NOT using the whole heater. the heating element has been discarded.. It is NOT safe to run an aquarium heater out of the water. The glass will get VERY hot, and any moisture that hits it will shatter the glass, possibly causing injury.. then, if that happens, you have an exposed heating element, which can cause shock, or even possibly electrocution. I used the thermostat out of an aquarium heater.. The heating element was replaced with an air type element. So, in a nutshell, I am just using the control side of the aquarium heater,... Not the heating side. I have found however, that using this setup, that my temperature varies VERY little... like .2 degrees.
So, what is it that you are currently using for a heating element?
Jason